NCT04613076

Brief Summary

Background: depression and chronic diseases are frequently comorbid public health problems. However, clinical guidelines often fail to consider comorbidities. This study protocol describes a cluster randomized trial (CRT) aimed to compare the effectiveness of a collaborative, computer-assisted, psycho-educational intervention versus enhanced usual care (EUC) in the treatment of depressed patients with hypertension and/or diabetes in primary care clinics (PCC) in Santiago, Chile. Methods: two-arm, single-blind, CRT carried out at two municipalities in Santiago, Chile. Eight PCC will be randomly assigned (1:1 ratio within each municipality, 4 PCC in each municipality) to the INTERVENTION or EUC. A total of 360 depressed patients, aged at least 18 years, with Patient Health Questionnaire-9 Item \[PHQ-9\] scores ≥ 15, and enrolled in the Cardiovascular Health Program at the participating PCC. Patients with alcohol/substance abuse; current treatment for depression, bipolar disorder, or psychosis; illiteracy; severe impairment; and resident in long-term care facilities, will be excluded. Patients in both arms will be invited to use the Web page of the project, which includes basic health education information. Patients in the INTERVENTION will receive eight sessions of a computer-assisted, psycho-educational intervention delivered by trained therapists, a structured telephone calls to monitor progress, and usual medical care for chronic diseases. Therapists will receive biweekly and monthly supervision by psychologist and psychiatrist, respectively. A monthly meeting will be held between the PCC team and a member of the research team to ensure continuity of care. Patients in EUC will receive depression treatment according to clinical guidelines and usual medical care for chronic diseases. Outcome assessments will be conducted at three, six, and twelve months after enrollment. The primary outcome will be depression improvement at six months, defined as ≥ 50% reduction in baseline PHQ-9 scores. Intention-to-treat analyses will be performed.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
359

participants targeted

Target at P75+ for not_applicable depression

Timeline
Completed

Started Sep 2019

Typical duration for not_applicable depression

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 3, 2019

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

October 21, 2020

Completed
13 days until next milestone

First Posted

Study publicly available on registry

November 3, 2020

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2022

Completed
Last Updated

December 6, 2023

Status Verified

December 1, 2023

Enrollment Period

3.3 years

First QC Date

October 21, 2020

Last Update Submit

December 5, 2023

Conditions

Keywords

Cluster Randomized Controlled TrialDepressionHypertensionDiabetesPrimary CarePsychotherapyCognitive-Behavioral

Outcome Measures

Primary Outcomes (1)

  • Depression change

    Defined as a 50% reduction in a participant's Patient Health Questionnaire-9 Item (PHQ-9) score compared to the baseline. The PHQ-9 minimum and maximum values are 0 and 27 points. Higher scores mean worse outcomes.

    Even though the primary outcome is taken at six-month follow-up, this measure will also be reported at three- and twelve-month follow-up.

Secondary Outcomes (6)

  • Proportion of patients who change their depressive status

    Three-, six-, and twelve-month follow-up.

  • Health-related quality of life

    Three-, six-, and twelve-month follow-up.

  • Social solving problem skills

    Three-, six-, and twelve-month follow-up.

  • Proportion of participants with change in blood pressure

    Three-, six-, and twelve-month follow-up.

  • Ad-hoc questionnaire for the assessment of the acceptability of depression treatment

    Three-, six-, and twelve-month follow-up.

  • +1 more secondary outcomes

Other Outcomes (1)

  • Utilization of health care services

    Three-, six-, and twelve-month follow-up.

Study Arms (2)

"Me cuido y me siento mejor"

EXPERIMENTAL

Patients in the primary care clinics assigned to the intervention will receive eight sessions of a computer-assisted, psycho-educational intervention delivered by trained therapists; structured telephone calls by social worker to monitor clinical progress and treatment adherence; usual medical care for chronic diseases; and access to the project's website, which will be populated with information about the project's aims, the research team, and contact data, along with educational material related to depression, diabetes and hypertension, and healthy lifestyles. Study therapists will receive biweekly and monthly supervision by psychologist and psychiatrist, respectively. A monthly meeting will be held between the PCC team and a member of the research team to ensure continuity of care.

Behavioral: "Me cuido y me siento mejor"

Enhanced Usual Treatment

ACTIVE COMPARATOR

The patients in the primary care clinics assigned to the comparator will receive the usual treatment for depression and their physical conditions -all the guaranteed interventions for people with depression, hypertension, and/or diabetes in primary care, according to the Clinical Guidelines for the Treatment of Depression- and their associated basket of health benefits included in the Regime of Explicit Health Care Guarantees. They will have access to the project's website, which will be populated with information about the project's aims, the research team, and contact data, along with educational material related to depression, diabetes and hypertension, and healthy lifestyles.

Behavioral: Enhanced Usual Treatment

Interventions

A multicomponent, collaborative, computer-assisted, psycho-educational intervention for the management of depressive symptoms in primary care patients with diabetes and/or hypertension.

"Me cuido y me siento mejor"

Enhanced Usual Treatment

Enhanced Usual Treatment

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 or older.
  • Enrolled in the Cardiovascular Health Program (i.e. currently receiving treatment for diabetes and/or hypertension) at the study primary care clinics.
  • Patient Health Questionnaire-9 Item (PHQ-9) score ≥ 15.
  • Signed informed consent.

You may not qualify if:

  • Functional illiteracy (i.e., patients unable to read and comprehend written information, such as the study questionnaires or written informed consent).
  • Significant visual and/or auditive impairments (i.e., such as those imposing a serious difficulty to respond the study questionnaires or written informed consent).
  • Pregnancy or breastfeeding.
  • Cognitive impairment - ineligible patients would give a negative answer to questions "What year is it?" and "Where are we (place/address)?".
  • In treatment for bipolar and/or psychotic disorder.
  • Current psychological treatment for depression.
  • High risk of developing alcohol/substance abuse problems, according to an Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) score ≥ 27.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Dirección de Salud Municipal I. Municipalidad de El Bosque

Santiago, Chile

Location

Related Publications (1)

  • Rojas G, Martinez P, Guajardo V, Campos S, Herrera P, Vohringer PA, Gomez V, Szabo W, Araya R. A collaborative, computer-assisted, psycho-educational intervention for depressed patients with chronic disease at primary care: protocol for a cluster randomized controlled trial. BMC Psychiatry. 2021 Aug 21;21(1):418. doi: 10.1186/s12888-021-03380-2.

MeSH Terms

Conditions

DepressionHypertensionDiabetes Mellitus

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehaviorVascular DiseasesCardiovascular DiseasesGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Study Officials

  • Graciela Rojas

    University of Chile

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

October 21, 2020

First Posted

November 3, 2020

Study Start

September 3, 2019

Primary Completion

December 31, 2022

Study Completion

December 31, 2022

Last Updated

December 6, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

Locations